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fix auto-downcasting to work in all cases

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This commit is contained in:
Ryan Fleury
2025-05-01 08:27:03 -07:00
parent 791187b152
commit ed4fe5e3d1
1 changed files with 6 additions and 6 deletions
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src/eval/eval_ir.c
+6 -6
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@@ -2172,6 +2172,7 @@ e_push_irtree_and_type_from_expr(Arena *arena, E_IRTreeAndType *root_parent, B32
//- rjf: if the evaluated type has a virtual table pointer, then we must
// pre-emptively evaluate this ir tree, and determine a more resolved type.
if(!disallow_autohooks && result.mode != E_Mode_Null)
{
E_TypeKey type_key = e_type_key_unwrap(result.type_key, E_TypeUnwrapFlag_Modifiers);
if(e_type_kind_is_pointer_or_ref(e_type_kind_from_key(type_key)))
@@ -2193,15 +2194,14 @@ e_push_irtree_and_type_from_expr(Arena *arena, E_IRTreeAndType *root_parent, B32
}
if(has_vtable)
{
E_OpList oplist = e_oplist_from_irtree(scratch.arena, result.root);
E_IRNode *class_base_value_tree = e_irtree_resolve_to_value(scratch.arena, result.mode, result.root, result.type_key);
E_OpList oplist = e_oplist_from_irtree(scratch.arena, class_base_value_tree);
String8 bytecode = e_bytecode_from_oplist(scratch.arena, &oplist);
E_Interpretation interpret = e_interpret(bytecode);
U64 ptr_vaddr = interpret.value.u64;
U64 addr_size = e_type_byte_size_from_key(type_key);
U64 class_base_vaddr = 0;
U64 class_base_vaddr = interpret.value.u64;
U64 vtable_vaddr = 0;
if(e_space_read(interpret.space, &class_base_vaddr, r1u64(ptr_vaddr, ptr_vaddr+addr_size)) &&
e_space_read(interpret.space, &vtable_vaddr, r1u64(class_base_vaddr, class_base_vaddr+addr_size)))
U64 addr_size = e_type_byte_size_from_key(type_key);
if(e_space_read(interpret.space, &vtable_vaddr, r1u64(class_base_vaddr, class_base_vaddr+addr_size)))
{
Arch arch = e_base_ctx->primary_module->arch;
U32 rdi_idx = 0;